Blog Post

10kW UPS Inverter utilizing a full Rom SiC module solution

The following article intends to describe the application of full SiC module in a 10 kW UPS inverter. 5-10kW is a widely used power rating for UPS and is also common for power modules.

A module has been used to optimize the inverter system with respect to stray inductance and in order to use the full potential of the SiC devices. Target switching frequencyThe number of complete cycles or vibrations per unit of time. Rate of alternation in an AC current. Expressed in cycles per second or hertz (Hz). is 100 kHz. For this project ROHM collaborated with Fraunhofer ISE in Freiburg, Germany to achieve a very high efficiency with best performance to volume, power densityA figure of merit usually expressed in Joules per cubic inch for capacitorsA figure of merit usually expressed in Joules per cubic inch for capacitorsA figure of merit usually expressed in Joules per cubic inch for capacitors and weight ratio at lowest total system cost. Vincotech, a supplier of module-based solutions for power electronics has provided a Full SiC, MNPC topology module utilizing ROHM’s SiC MOSFETs and SBD.